Hi
to be honest: all kind of protection within VBA can easily be
circumvented. One of the easiest things: Your user disables macros for
your file. This way your code never runs at all :-)

So besided using Com Addins it is not possible to protect the coding of
a worksheet for a determined user. Also password protection does not
help, costs about 1 minute to crack this protection


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Regards
Frank Kabel
Frankfurt, Germany


I have been trying to develop a method to allow a potential buyer to
try an Excel Spreadsheet before buying. I would like to give the
buyer 10 trys after which they could not access the speadsheet (I
have coding to do that).

However, I then want to send them a small file that they load (or
whatever) into Excel and it eliminates, (deletes, voids, or what
ever) the vba coding that did not permit further uses.

They can then use the Workbook Template without restriction.

The vba coding I'm using is as follows:

Sub Auto_Open()
MaxUses = 5

Application.DisplayAlerts = False

Sheets(1).Cells(1, 1).Value = Sheets(1).Cells(1, 1).Value + 1

If Sheets(1).Cells(1, 1).Value < MaxUses Then ThisWorkbook.Save

If Sheets(1).Cells(1, 1).Value MaxUses Then

MsgBox "Please contact the author for an updated version",
vbOKOnly, "Whoa Partner"

ThisWorkbook.Close
End If
End Sub

Any ideas would be appreciated.

Dick


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